If you are just looking for general storage for your Windows servers, the filer impersonates a Windows file server extremely well. AD integration, including authentication, auditing, even management via MMC.
A quick rundown, not in depth by far.
You create aggregates(but being used, your's may be done), these are the storage pools just like if you were using raid in your server. The biggest exception is NetApp is very good at using multiple raid groups for one storage pool.
Once the filer is up and running, join it to AD with cifs setup(this is simple but involved, I think there are some good posts in the forums here if I remember right)
From there you create volumes, essentially your partitions on a Windows server, but you don't want to store anything here.
vol create 'volume name' 'aggregate name' 'size'
vol create citrix aggr0 1000g
From there you create qtrees, this is essentially a partition within a partition.
vol create /vol/citrix/server1
vol create /vol/citrix/server2
At either the volume or the qtree you tell the file system it will be NTFS
qtree security /vol/citrix ntfs
or
qtree security /vol/citrix/server1
qtree security /vol/citrix/server2
Open the MMC, connect to another server
enter your filer name
Voila! you see what servers believe is a Windows server and can now setup shares to each of the qtrees you created through the GUI or command line.
Now this is very simplistic, but it gives you a good idea of the flow. Once you get familiar you can create new vols, qtrees, and shares in seconds..NetApp is really good at simplicity.
- Scott